Home / 826,998.40-1,240,574.15-321,597.39

Finding the Fourth Proportional to 826,998.40, 1,240,574.15 and 321,597.39

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Solution

The fourth proportional to 826,998.40, 1,240,574.15 and 321,597.39 is: 482,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,998.40 : 1,240,574.15 = 321,597.39 : x
  2. Step 2: Convert to fraction form
    826,998.40/1,240,574.15 = 321,597.39/x
  3. Step 3: Cross multiply
    826,998.40x = 1,240,574.15 × 321,597.39
  4. Step 4: Simplify right side
    826,998.40x = 398,965,407,133.48
  5. Step 5: Solve for x
    x = 398,965,407,133.48/826,998.40
  6. Step 6: Final answer
    x = 482,425.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.